PREDICTION OF FORMATION OF DYNAMICALLY STABLE EBB TIDAL DELTA AND MEASURES FOR PREVENTING OFFSHORE SAND LOSS

Takaaki Uda; Masumi Serizawa; Toshiro San-nami; Toshinori Ishikawa

doi:10.9753/icce.v32.sediment.73

No. 32 (2010), Sediment Transport and Morphology

No. 32 (2010)

PREDICTION OF FORMATION OF DYNAMICALLY STABLE EBB TIDAL DELTA AND MEASURES FOR PREVENTING OFFSHORE SAND LOSS

Sediment Transport and Morphology

https://doi.org/10.9753/icce.v32.sediment.73

Published 2011-01-29

Takaaki Uda⁺⁻
Masumi Serizawa⁺⁻
Toshiro San-nami⁺⁻
Toshinori Ishikawa⁺⁻

Takaaki Uda

Public Works Research Center

Masumi Serizawa

Coastal Engineering Laboratory Co., Ltd.

Toshiro San-nami

Coastal Engineering Laboratory Co., Ltd.

Toshinori Ishikawa

Public Works Research Center

Proceedings of the 32nd International Conference

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Keywords

ebb tidal delta
predictive model
beach changes
BG model
cross-shore sand bypassing

How to Cite

Uda, T., Serizawa, M., San-nami, T., & Ishikawa, T. (2011). PREDICTION OF FORMATION OF DYNAMICALLY STABLE EBB TIDAL DELTA AND MEASURES FOR PREVENTING OFFSHORE SAND LOSS. Coastal Engineering Proceedings, 1(32), sediment.73. https://doi.org/10.9753/icce.v32.sediment.73

Abstract

We developed a model for predicting the evolution of an ebb tidal delta based on the BG model, which was proposed by the present authors using the Bagnold concept of the equilibrium slope. Bathymetric changes around the inlet of Imagire-guchi between 1978 and 2005 were quantitatively analyzed to investigate the evolution of the ebb tidal delta and sand deposition offshore of the inlet. The model was applied to this inlet. The predicted bathymetric changes were in good agreement with the measured changes. Some measures for preventing the offshore sand loss were also considered by applying the model. The most effective measure was predicted to be cross-shore sand bypassing.

https://doi.org/10.9753/icce.v32.sediment.73

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References

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Inman, D. L. and R. A. Bagnold. 1963. Littoral Processes, in The Sea, M. N. Hill (ed.), Vol. 3, 529-533, Wiley, New York.

Sakai, K., T. Uda, M. Serizawa, T. Kumada and Y. Kanda. 2006. Model for predicting threedimensional sea bottom topography of statically stable beach, Proc. 30th ICCE, 3184-3196.

Serizawa, M., T. Uda, T. San-nami and K. Furuike. 2006. Three-dimensional model for predicting beach changes based on Bagnold's concept, Proc. 30th ICCE, 3155-3167.

Serizawa, M., T. Uda, T. San-nami, K. Furuike and T. Ishikawa. 2008. Model for predicting formation of dynamically stable ebb tidal delta off tidal inlet, Proc. 31st ICCE, 2291-2302.

Syamsidik, S. Aoki and S. Kato. 2008. Effects of tidal currents and waves on bottom suspended sediment fluxes off two river mouths, Proc. 18th Int. O shore (Ocean) and Polar Eng. Conf., Vancouver.

Tung, T. T., M. J. F. Stive, J. van de Graaff and D. J. R. Walstra. 2007. Morphological behavior of seasonal closure of tidal inlets, Coastal Sediments '07, 1589-1600. http://dx.doi.org/10.1061/40926(239)123

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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PREDICTION OF FORMATION OF DYNAMICALLY STABLE EBB TIDAL DELTA AND MEASURES FOR PREVENTING OFFSHORE SAND LOSS

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